Which products and versions are affected by CVE-2006-4691?

Affected: Windows 2000 (Microsoft); Windows Xp (Microsoft). The full list is in the CVE brief.

Is CVE-2006-4691 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2006-4691 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-4691?

Public exploit code is available.

Is there a fix for CVE-2006-4691?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-4691 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2006-4691

CriticalPublic exploit

Stack-based buffer overflow in the NetpManageIPCConnect function in the Workstation service (wkssvc.dll) in Microsoft Windows 2000 SP4 and XP SP2 allows remote attackers to execute arbitrary code via NetrJoinDomain2 RPC messages with a long hostname.

Published Nov 14, 2006 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2006-4691 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Windows 2000 (Microsoft), Windows Xp (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 80% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

80%

Higher than 99.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2006-4691 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Windows 2000Microsoft	See advisory	n/a
Windows XpMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Nov 14, 2006
Last updated
Apr 22, 2026

References

12 more references in the full CVE brief

FAQ

Common Questions.

Stack-based buffer overflow in the NetpManageIPCConnect function in the Workstation service (wkssvc.dll) in Microsoft Windows 2000 SP4 and XP SP2 allows remote attackers to execute arbitrary code via NetrJoinDomain2 RPC messages with a long hostname.
Affected: Windows 2000 (Microsoft); Windows Xp (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2006-4691 Running On Your Attack Surface?

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